Behind the colorful curtains and extravagant performances, there lies the dark side of a circus life, hidden away from the smiles and praises of the audience. Set in early 20th century Japan, Midori: Shoujo Tsubaki highlights the misdeeds that occur in circus camps. Midori was an innocent young girl who enjoyed her life as an elementary student to the fullest. However, everything changed after her mother fell ill. Eventually, Midori is forced to stop going to school and, instead, sells flowers in the city. When her mother dies tragically, Midori meets a stranger who leads her towards the circus. What awaits her will change her life forever... In a life where nothing seems to go right, will Midori lose faith and give up? Or will she manage to stay strong in hopes of a better future?

Sometime in the future, terrorism in Japan has become commonplace, and the police have become almost as brutal as criminals. A member of the Special Security Force known as Angel, is the best of the best, stopping at nothing in her fight for justice. Things get interesting for Angel and her partner, Raiden, when they begin investigating a series of murders in which the victims were known criminals, killed in very unpleasant ways. This trio of killers known as Hunters, is a group of psychics that have banded together to hunt down the lowest scum in the city and bring them to justice. After a couple of encounters between the cops and the psychics, two of the psychics begin to think that maybe they're not the good guys after all; but the third prefers killing to morality. Augmented by cybernetics from a mysterious source, this third hunter heads out on a killing spree, with the Special Security Force as the first target. Even with help from the other two psychics and her newly cyborged partner (after an unfortunate accident), Angel is going to have her work cut out trying to find the rogue psychic and the organization behind the Hunters.

Yuzuka Hanami is a young, carefree girl who lives the most ordinary life imaginable. Although her father works around the clock and her mother is rarely home, she still enjoys herself and strives to be an excellent student. Miton, on the other hand, is an alien life-form with the ability to transform his master into a magical girl, a warrior who fights evil wherever it may appear. However, there are not as many enemies as there used to be, so Miton has been out of work for a while. Starving and homeless, he has taken up residence in a pile of garbage. As Yuzuka walks past him one day, Miton seizes the opportunity to offer his services to the young girl. Yuzuka reluctantly agrees, but when she transforms into a magical girl and discovers that her outfit is a swimsuit, she begins to have second thoughts about what she has gotten herself into! [Written by MAL Rewrite]

In the year 2047, mankind discovered a rare metal ore called "Gaimetal", which possessed a huge amount of energy, and mining for these strange metal ore begins all over the world. However, in 2075, humankind were been constantly attacked by Gaist, a race of metallic creatures whose bodies were encrusted with Gaimetal, thus forming the GCG (also known as "Gaist Crusher Garrison"), an organization tasked with dealing against the Gaist. In 2064, the GCG send out mankind's line of defense: the Gaist Crushers, humans who can wear a special Gaimetal armor called "Gaist Gear", and battle the Gaist,as well as the threat opposed by a mysterious organization called "Erasers".